Henry stutsman



(No Model.)

H. STUTSMAN.

STEAM GENERATOR.

No. 328,531. Patented Oct. 20, 1885.

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UNITE STATES ATENT FFICE.

HENRY STUTSMAN, OF EAST PORTLAND, OREGON.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 328,531, dated October20, 1885.

Application filed January 23, 1885. Serial No. 157,750. (No model.)

To all whom it may concern.-

Be it known that I, HENRY STUTsMAN, of East Portland, in the county ofMultnomah and State of Oregon, have invented an Improved Steam-Generatorwith Improved Oirculating-Tubes, of which the following is aspecification.

My improvement consists of a water-base and a vertical column ofcylinder form provided with my improved circulating-tubes.

The-objects of myimprovements are to provide a vertical column with awater-base, the circulating coil-tube fire-grate, and circulating-tubesfor the purpose of rapidly generating steam. I attain these objects bythe mechanism illustrated in the accompanying drawings, in which Figure1 is a detached half-sectional view of my improved circulating-tube asit appears with the circulating-plate removed; Fig. 2, a detached andhalf-sectional view of the tube and circulating-plate; Fig. 3, adetached view of said plate, representing the top or bottom sides; Fig.4, a detached and edge view of the circulating-plate; Fig. 5, a top viewof the circulating coil of pipe; Fig. 6, a vertical section of theentire generator; Fig. 7, a horizontal sectional view as it appears withthe honnet removed. 7

Similar letters refer to similar parts throughout the several views.

The vertical column 0 is riveted and secured to the water-base B, andwhich column extends upward and partly incased in the smoke stack, asshown in Fig. 6, and which part serves as the steanrdrum D, and themiddle portion of which is provided with the circulating-tubes a andwith the lower base, B, and the coil 0 serve as the water-space. The

tubes a as shown in Figs. 2 and 6, are provided with the separatecirculating-plates a. Said plates are provided with the lugs a a,

which prevent the plates from passing through the tube a any fartherthan flush with the inner end, as shown in Figs. 2 and 6, and which isinserted into the tube from the outer end before the end cap is screwedon, by which:

means the lugs a a are retained between the end of the tube and saidcap. Said plates a cause the water to flow outward from the column 0 inthe lower half of the tubes (4 and return to the said column through theupper half of said tube, as indicated by the arrows as shown in Figs. 2and 6. The coiled tube 0 is connected with the water-base B and thecolumn 0, which serves as a circulating tube from the base to thecolumn, and also as a firegrate. The outer casing, 0 slips down over thewater-base B and rests 011 the rivets of said base, as shown in Fig. 6.The upper end of the casing c is provided with the bonnet a which issecured on the upper end of the casing 0 as represented in Fig. 6. Thecasing or outer wall, 0, is also provided 'with two doors, D D,communicating with the firebox f for the reception of fuel, and also twodamper-doors, D D It will be further observed that the generator isprovided with a safetyvalve and the escape-pipe P; also the waterglass,as shown in Fig. 6.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent 1. In a steam-generator constructed as described, thewater-base B, in combination with the vertical column 0, the fire-gratecoil 0, as described and set forth.

2. In asteam-generator constructed as described, the plate a, with thelugs a a, in combination with the tube (L as and for the purpose setforth.

HENRY STUTSMAN.

\Vitnesses:

ALVIN W. VAN DORSTON, O. AUSTIN.

